New particle formation of liquid or solid nanoparticles from gas-phase precursors is a
decisive process in Earth's atmosphere and is considered one of the largest uncertainties in …

The Arctic is warming at more than twice the rate of the global average. This warming is
influenced by clouds, which modulate the solar and terrestrial radiative fluxes and, thus …

The main nucleating vapor in the atmosphere is thought to be sulfuric acid (H2SO4),
stabilized by ammonia (NH3). However, in marine and polar regions, NH3 is generally low …

Nucleation of neutral iodine particles has recently been found to involve both iodic acid
(HIO3) and iodous acid (HIO2). However, the precise role of HIO2 in iodine oxoacid …

Even though the Arctic is remote, aerosol properties observed there are strongly influenced
by anthropogenic emissions from outside the Arctic. This is particularly true for the so-called …

Frequency and intensity of warm and moist air-mass intrusions into the Arctic have
increased over the past decades and have been related to sea ice melt. During our year …

The roles of Arctic aerosols as ice-nucleating particles remain poorly understood, even
though their effects on cloud microphysics are crucial for assessing the climate sensitivity of …

The Arctic environment is rapidly changing due to accelerated warming in the region. The
warming trend is driving a decline in sea ice extent, which thereby enhances feedback loops …

Marine new particle formation (NPF) can affect cloud condensation nuclei (CCN) in the
global atmosphere. Recently, iodic acid (IA) has been identified as a critical driver for marine …

Acid–base molecular clusters are an important stage in atmospheric new particle formation.
While such clusters are most likely multicomponent in nature, there are very few reports on …